Boiler operations are so advanced that many countries have full-time boiler operations, except for large and complex boilers. However, there are exceptions for chemical regeneration boilers for large power companies and similar processes where the boiler is an essential element.
With rising fuel prices, industries that use steam boilers for heating or power generation find it difficult to operate at maximum efficiency. While steam consumption, leakage, and other heat loss can contribute to an overall energy bill, this article focuses on the boiler core. You can also avail the benefits of boiler operator training course and high risk work licenses.
To date, the most common cause of energy inefficiency in boilers can be attributed to the use of excess air during combustion in the burner. If there is more air than required for combustion, the excess air is heated and eventually discharged into the atmosphere.
However, there are reasons to add a little extra combustion air – to compensate for imperfect conditions in the mixing of fuel and air from the burner, changes in air density, pitch control systems, burner maintenance, changes in fuel composition and viscosity, and imperfections. spray control. for steam burners.
Adjusting the fuel to air ratio can be very difficult. If there is too much fuel compared to air, incomplete combustion will occur. This causes soot deposits in the combustion chamber or even in the boiler tubes.
The effect of soot formation on the heat transfer surface and the possible explosion of smoke inside the boiler is much worse than the loss of a small amount of energy through the exhaust pipe. For this reason, many boiler operators choose to adjust their burners so that there is less excess air.